BitmapDataExtensionsTransformColors(IReadWriteBitmapData, IAsyncContext, FuncColor32, Color32, IDitherer) Method

public static bool TransformColors(
	this IReadWriteBitmapData bitmapData,
	IAsyncContext? context,
	Func<Color32, Color32> transformFunction,
	IDitherer? ditherer
)

<ExtensionAttribute>
Public Shared Function TransformColors ( 
	bitmapData As IReadWriteBitmapData,
	context As IAsyncContext,
	transformFunction As Func(Of Color32, Color32),
	ditherer As IDitherer
) As Boolean

public:
[ExtensionAttribute]
static bool TransformColors(
	IReadWriteBitmapData^ bitmapData, 
	IAsyncContext^ context, 
	Func<Color32, Color32>^ transformFunction, 
	IDitherer^ ditherer
)

[<ExtensionAttribute>]
static member TransformColors : 
        bitmapData : IReadWriteBitmapData * 
        context : IAsyncContext * 
        transformFunction : Func<Color32, Color32> * 
        ditherer : IDitherer -> bool 

Parameters

bitmapData  IReadWriteBitmapData

The IReadWriteBitmapData to be transformed.

context  IAsyncContext

An IAsyncContext instance that contains information for asynchronous processing about the current operation.

transformFunction  FuncColor32, Color32

The transform function to be used on the colors of the specified bitmapData. It must be thread-safe.

ditherer  IDitherer

An optional IDitherer instance to dither the result of the transformation if transformFunction returns colors that is not compatible with the PixelFormat of the specified bitmapData.

Return Value

Usage Note

This method blocks the caller thread but if context belongs to an async top level method, then the execution may already run on a pool thread. Degree of parallelism, the ability of cancellation and reporting progress depend on how these were configured at the top level method. To reconfigure the degree of parallelism of an existing context, you can use the AsyncContextWrapper class.

Alternatively, you can use this method to specify the degree of parallelism for synchronous execution. For example, by passing AsyncHelper.SingleThreadContext to the context parameter the method will be forced to use a single thread only.

When reporting progress, this library always passes a DrawingOperation instance to the generic methods of the IAsyncProgress interface.

Reference